Answer:
option C is correct
distance from the driver is 2 m
Explanation:
Given data
index of refraction of the water n = 1.333
driver height from ground= 1.5 m
to find out
What angle does light become maximally polarized and what distance from the driver will polarized
solution
we know that n1 for water = 1.33 and we know for air n2 = 1
so tan(θ) = n1 / n2
tan(θ) = 1.33 / 1
so (θ) = 53.06 degree
so for distance d will be calculate as
tan ( 90 - (θ) ) = height / distance
tan ( 90 - 53.06 ) = 1.5 / distance
distance = 1.5 / 0.7519
distance = 1.994 m = 2 m
so option C is correct
distance from the driver is 2 m
The question is incomplete, the complete question is;
A student is measuring the volumes of nectar produced by a flowering plant for an experiment. He measures nectar from 50 flowers using a graduated cylinder that measures to the nearest millilitre (mL). Which statement describes a change that can help improve the results of his experiment?
A.) His measurements will be more precise if he takes measurements from an additional 100 flowers. B.) His measurements will be more accurate if he uses a graduated cylinder that measures to the nearest tenth of a mL. C.) His measurements will be more precise if he uses a graduated cylinder that measures to the nearest tenth of a mL. D.) His measurements will be more accurate if he takes measurements from an additional 100 flowers.
Answer:
His measurements will be more accurate if he uses a graduated cylinder that measures to the nearest tenth of a mL.
Explanation:
In the measurements of volume using most graduated cylinders, the cylinders are calibrated to the nearest tenth owing to the uncertainty in the measurement of volume.
Hence if a cylinder has measures to the nearest milliliter(mL), then he can improve his experiment by using a graduated cylinder that measures to the nearest tenth of a mL
Answer:
Option B
Tile is a good conductor : a carpet is a good insulator
Explanation:
When the feet comes in contact with the tile, the tile conducts heat from the body making one to feel cold. However, since carpet is made of insulators such as cotton, they don't conduct heat, therefore, it slows down the flow of the heat which would make it feel warm so our feet do not feel much more colder as it does with the tiles.
B identifying the types of data to be gathered
